interrupt priority and IPR1, IPR2, IPR3 SFR's

[hello188]

Hi, I used compiler directive to set the interrupt priority. However, looking at the special function registers for interrupt priority, and it looks like the priorities were not reflected onto the SFR's.

for example, I wanted UART1 RX interrupt to be high priority, so I declare my ISR as HIGH like below,

[Ttelmah]

What chip?.
What compiler version?.

You need:

#device HIGH_INTS=TRUE

before the 'high' keyword will do anything.

Be aware of the limitation with most chips, that if you are also using INT_EXT, then _this_ will also be a high priority interrupt. Hardware limitation. No IPR bit.

Best Wishes